Author
- Guillelmus Gilaberti de Olivariis1
- Haymo of Faversham1
- Heinrich Reicher1
- Heinrich Stegmüller1
- Henry VI of England1
- Henry VIII of England1
- Holy Roman Empire1
- House of Borgia1
- House of Gondi1
- House of Ventimiglia1
- House of della Rovere1
- Hugh Ripelin of Strasburg1
- Hugh of Saint Victor1
- Hugh of Saint-Cher1
- Humphrey Wellys1
- Iachetus Italianus1
- Iacopo Bracciolini1
- Iacopo da Benevento1
- Ildibrandinus1
- Imbert Feutrier1